EP 1676867 B1 20090916 - Process for preparing fluoropolymer dispersions
Title (en)
Process for preparing fluoropolymer dispersions
Title (de)
Herstellungsverfahren für Fluorpolymerdispersionen
Title (fr)
Procédé de préparation de dispersions de fluoropolymères
Publication
Application
Priority
IT MI20042553 A 20041230
Abstract (en)
[origin: EP1676867A1] A process to substantially remove the fluorinated anionic surfactants from fluoropolymer dispersions comprising the following steps: a) addition to the fluoropolymer dispersion of an anionic polyelectrolyte; b) contact of the dispersion with an anionic exchanger; c) separation of the dispersion from the anionic exchanger and recovery of the dispersion substantially fluorinated anionic surfactant free.
IPC 8 full level
C08F 6/16 (2006.01); C08J 3/03 (2006.01); C08L 27/12 (2006.01)
CPC (source: EP US)
C08F 6/16 (2013.01 - EP US); C08J 3/03 (2013.01 - EP US); C08J 2327/12 (2013.01 - EP US); Y10S 210/915 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1676867 A1 20060705; EP 1676867 B1 20090916; AT E443087 T1 20091015; CN 1827655 A 20060906; CN 1827655 B 20120314; DE 602005016646 D1 20091029; IT MI20042553 A1 20050330; JP 2006188704 A 20060720; JP 5133519 B2 20130130; US 2006144794 A1 20060706; US 7294276 B2 20071113
DOCDB simple family (application)
EP 05028256 A 20051222; AT 05028256 T 20051222; CN 200510121554 A 20051230; DE 602005016646 T 20051222; IT MI20042553 A 20041230; JP 2005379680 A 20051228; US 31980205 A 20051229